Rob,
Dude if your not getting pass throughs with 80# of KE an a whitetail something is terribly wrong; and I don't believe it's your broadheads. Because of the design of the Snypers, they use probably the least amount of KE to operate, not to mention the blades are scary sharp out of the package. You should be blowing through those deer like the proverbial hot knife through butter. I've blown though deer with the Vortex mini max 3 blade 2"cut with a lot less KE than that (before I got my Bowtechs that is [8D]). If you feel that it might be your heads then take a look at Slick Tricks. With blood trails like the ones below, who needs mechanicals.
BTW, these are kills by a young lady shooting 45# draw weight with 85 grain Slick Tricks. Seems to have done a hell of a job to me.